[flyingn]

ours runs fine on 93 octane and a few gallons of low lead 100 octane av fuel mixed in

[Stan Weiss]

Originally Posted by flyingn

ours runs fine on 93 octane and a few gallons of low lead 100 octane av fuel mixed in

Have you done a cranking compression test? If so what are you seeing.

Stan

[unruhjonny]

Originally Posted by Skip Fix

My virgin SR 614s with flat valves(no tulip dent) were right at 69cc. They had not even had a valve job ever so pretty sure no milling.

and that is EXACTLY what the 1970 Performance catalog put them at.

[Douglas Willinger]

What are the implications of say using the 1973-1974 SD 455 style single trough valve relief piston design, as well as the weird silence on that design, especially given Pontiac's devotion to tweaking the designs of their engines with numerous cylinder head revisions?

[flyingn]

Originally Posted by Stan Weiss

Have you done a cranking compression test? If so what are you seeing.

Stan

Stan, did not do a cranking compression test. Why? (BTW we are right over the bridge in jersey)

[Stan Weiss]

Originally Posted by flyingn

Stan, did not do a cranking compression test. Why? (BTW we are right over the bridge in jersey)

Just trying to get an idea what cylinder pressure / DCR you might have. Is you engine a virgin?

Many years ago I worked for a number years at a few different jobs in Cinnaminson .

Stan

[flyingn]

Originally Posted by Stan Weiss

Just trying to get an idea what cylinder pressure / DCR you might have. Is you engine a virgin?

Many years ago I worked for a number years at a few different jobs in Cinnaminson .

Stan

No, my engine has been rebuilt to stock specs. Where in Cinnaminson?

[Stan Weiss]

Originally Posted by flyingn

No, my engine has been rebuilt to stock specs. Where in Cinnaminson?

Frank,
I am bad with street names, so I hope I have the right one. I believe it was Riverton Rd and Rt130, there was a Gulf Gas Station that I worked at. It had a jug handle around it. Next if you head up Riverton Rd I did some work late in the Wellington housing development and then at the Wellington of Moorestown development. After that if you are on RT130 N right pass the jug handle (from the above gas station) on the right is a small office complex. I worked for a company that had an office in that complex for a few years. All of this was back in the 60's and 70's

Stan

[Skip Fix]

Originally Posted by unruhjonny

and that is EXACTLY what the 1970 Performance catalog put them at.

I was still a Chevy guy back then! Bought the 614s in late 80s after my 78 TA got beat bad at the track bu a just warmed over 5.0 later Mustang.

[flyingn]

Originally Posted by Stan Weiss

Frank,
I am bad with street names, so I hope I have the right one. I believe it was Riverton Rd and Rt130, there was a Gulf Gas Station that I worked at. It had a jug handle around it. Next if you head up Riverton Rd I did some work late in the Wellington housing development and then at the Wellington of Moorestown development. After that if you are on RT130 N right pass the jug handle (from the above gas station) on the right is a small office complex. I worked for a company that had an office in that complex for a few years. All of this was back in the 60's and 70's

Stan

small world. That Gulf has been a Riggins for the last 24 years and its my business partner. I'm there every day.. I am very familiar with the other locations too.

[Dragncar]

Originally Posted by footjoy

I was curious how the RAIII runs on gas available today or do you have to run on 93 octane.

Greg

Dished pistons and a custom cam and you can run 91.