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Showing results 1 to 25 of 273
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Posts Made By:
pmd400
Forum:
Pontiac - Street
01-26-2021, 09:31 PM
Replies:
398
Pontiac V8’s: Retrofitting GM Roller Lifters
Views:
70,359
Posted By
pmd400
The vast majority of lifters available for the...
The vast majority of lifters available for the roller cam sbc and iron dukes seem to use the latter ls7 type lifter. I wonder how long it will be before sealed power drop the 2148 lifter.
Forum:
Pontiac - Street
01-26-2021, 09:26 PM
Replies:
398
Pontiac V8’s: Retrofitting GM Roller Lifters
Views:
70,359
Posted By
pmd400
The lifter I used was an ls7 lifter. It looks as...
The lifter I used was an ls7 lifter. It looks as though the external dimension are the same except the oil band, so the test I did to see how much on the lifter below the machined flats come out of...
Forum:
Pontiac - Street
01-26-2021, 04:10 AM
Replies:
398
Pontiac V8’s: Retrofitting GM Roller Lifters
Views:
70,359
Posted By
pmd400
I tested an ls7 lifter on a cam that had the...
I tested an ls7 lifter on a cam that had the maximum lobe lift .030" under the cam journals. The round part of the lifter comes about 0.125" out of the lifter bore
Forum:
Pontiac - Street
06-02-2020, 07:17 PM
Replies:
25
Qjet rich after wot
Views:
4,458
Posted By
pmd400
I find the afr gauge to be helpful. You might set...
I find the afr gauge to be helpful. You might set the engine for best idle and it turns out to be 13:1 afr. But it can then be leaned out to 14:1 and there be virtually no difference. Also with light...
Forum:
Pontiac - Street
06-02-2020, 07:10 PM
Replies:
25
Qjet rich after wot
Views:
4,458
Posted By
pmd400
I was on a 100km/ph road so I just drove through...
I was on a 100km/ph road so I just drove through it. I didn’t want to stop in case it flooded. I’ll retest again on the weekend.
Forum:
Pontiac - Street
05-31-2020, 06:53 PM
Replies:
25
Qjet rich after wot
Views:
4,458
Posted By
pmd400
I thought it may be the piston sticking up in the...
I thought it may be the piston sticking up in the bore as well. But the piston would rise when the engine is turned off and it doesn’t run rich when initially started. The fuel pump is a carter...
Forum:
Pontiac - Street
05-30-2020, 05:56 PM
Replies:
25
Qjet rich after wot
Views:
4,458
Posted By
pmd400
Thanks, I'll check the needle and seat out. The...
Thanks, I'll check the needle and seat out. The engine is a 455, 9.5:comp, 6x heads, 232 at .050 cam.
Steve, what AFR do you like to see. I've never had any issues at 15.5:1 cruise. Runs to cold if...
Forum:
Pontiac - Street
05-29-2020, 11:07 PM
Replies:
25
Qjet rich after wot
Views:
4,458
Posted By
pmd400
Qjet rich after wot
I took the firebird out today to tune the carb. I recently installed a 17056262 qjet. AFR at cruise is about 15.5:1. WOT is about 13.5:1. After WOT the cruise AFR goes to 11:1 for a few minutes...
Forum:
Pontiac - Street
05-15-2020, 09:37 AM
Replies:
7
Quadrajet power piston hanger
Views:
1,188
Posted By
pmd400
71 jets and 45 rods. It was running 11:1 AFR at...
71 jets and 45 rods. It was running 11:1 AFR at cruise and the apt seemed to make not difference. The rods were in the jets but the arms on the hanger are bent upwards a fair amount. Thanks for the...
Forum:
Pontiac - Street
05-15-2020, 04:49 AM
Replies:
7
Quadrajet power piston hanger
Views:
1,188
Posted By
pmd400
Quadrajet power piston hanger
I playing with a 17056262 quadrajet. I notice that the arms that hold the primary rods are even but seem to be bent upwards a lot. Should the arms be sitting flat?
Forum:
Pontiac - Street
04-30-2020, 07:20 PM
Replies:
34
Lunati Voodoo or Ram Air 4 for 455
Views:
8,272
Posted By
pmd400
I think the duration at 0.006 lifter rise is not...
I think the duration at 0.006 lifter rise is not accurate in those files. I think the voodoo 704 is actually 281 degrees not 276. Also iv measured a 60919 cam and it is about 286 at 0.006 so I’d...
Forum:
Pontiac - Street
04-19-2020, 10:14 AM
Replies:
15
A tale (and questions) of two Holleys.
Views:
1,454
Posted By
pmd400
You are definitely correct that a wide gauge on a...
You are definitely correct that a wide gauge on a small bore will give completely different throttle position then a narrow gauge on a large bore. I guess there is no way for me to be sure if the...
Forum:
Pontiac - Street
04-18-2020, 11:46 PM
Replies:
15
A tale (and questions) of two Holleys.
Views:
1,454
Posted By
pmd400
I can't tell if the throttle position is 1/4 turn...
I can't tell if the throttle position is 1/4 turn from the seated position. The screw is actually seized. The carb required the primary throttle to be opened to far to idle at 750 rpm. So I bent the...
Forum:
Pontiac - Street
04-18-2020, 10:04 PM
Replies:
15
A tale (and questions) of two Holleys.
Views:
1,454
Posted By
pmd400
What's the problem with cracking the secondary...
What's the problem with cracking the secondary throttle on a holley for idle? I've got a 800 spread bore that has the secondary opened so a .002 feelers gauge fits
Forum:
Pontiac - Street
03-26-2020, 11:28 PM
Replies:
85
Voodoo 703 or 702?
Views:
17,277
Posted By
pmd400
I think some cam companies mislead us about the...
I think some cam companies mislead us about the tappet lift that seat duration is measured at. I’d say the cam card is showing duration at .006 lift on the opening and closing. But they advertise the...
Forum:
Pontiac - Street
03-26-2020, 07:00 PM
Replies:
20
350 Street Build
Views:
4,290
Posted By
pmd400
Did the dodge pistons end up down the hole at tdc?
Did the dodge pistons end up down the hole at tdc?
Forum:
67-92 Firebirds & Trans Ams WANTED
01-16-2020, 05:47 AM
Replies:
1
WTB: 70-73 formula/trans am or 74-81 trans am
Views:
2,423
Posted By
pmd400
WTB: 70-73 formula/trans am or 74-81 trans am
Hi,
I’m after a 70-73 formula or trans am. Preferably matching numbers, original color and options. Car must be in good condition. Low mileage original paint ideal. Budget is up to 30k. I realise...
Forum:
Pontiac - Street
10-10-2019, 10:29 PM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
Sorry. Heads are 7h1. Stock are 89cc. Should be...
Sorry. Heads are 7h1. Stock are 89cc. Should be able to mill to 80cc. Car still needs to be streetable. I’d honestly be happy with high 13s. If I can do that with a mild cam, mild gears and mild...
Forum:
Pontiac - Street
10-10-2019, 05:43 PM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
I have 2 pairs of 7j2 heads. All measure about...
I have 2 pairs of 7j2 heads. All measure about 89cc. Should be able to get them near 80cc.
Are the fti esr series of converters any good? They are 9.5 diameter and budget friendly.
Is that cam too...
Forum:
Pontiac - Street
10-10-2019, 07:47 AM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
So what I’m thinking of building is this. Stock...
So what I’m thinking of building is this. Stock block bored to 3.910. Use dodge 318 cast pistons on Pontiac rods. If I can find cheap reconditioned factory rods with arp bolts I’ll use them. Stock...
Forum:
Pontiac - Street
10-10-2019, 07:38 AM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
I wrote a couple of paragraphs as an update and...
I wrote a couple of paragraphs as an update and the site logged me out again so all was lost.
In short. Checked a stock 350 block. Comp height of piston were 1.720. Pistons were .020 in the hole so...
Forum:
Pontiac - Street
10-03-2019, 09:31 AM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
Pm sent
Pm sent
Forum:
Pontiac - Street
10-03-2019, 08:59 AM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
Are you interested in selling them?
Are you interested in selling them?
Forum:
Pontiac - Street
09-25-2019, 09:04 PM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
Is there a part number on the underside of the...
Is there a part number on the underside of the Piston? Not the casting number that u photographed? With the part number JE can tell you the exact specs.
Thanks
Forum:
Pontiac - Street
09-25-2019, 06:24 PM
Replies:
73
318 dodge piston in 350
Views:
6,677
Posted By
pmd400
Are they Pontiac 350 pistons? I can’t find any...
Are they Pontiac 350 pistons?
I can’t find any info on that part number
Showing results 1 to 25 of 273
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