[ta man]

Originally Posted by AdamIsAdam

That's sort of what I'm thinking. The bottom line is that it runs strong (when tuned right), certainly strong enough for around-town spirited driving and smokey burnouts for the kids (yes officer, it was for the kids). I want to get down the 1320 in the 12s, even 12.99, and I'd be VERY happy. I'd also like to see 400hp / 500ft lbs on the dyno at the rear wheels too.

But most importantly, is to run reliably and smoothly -- and to last a long time without exploding

400 hp at the rear wheels will easily put you in the 12's..I wouldn't fret over the 557 block much..unless you are launching the car with full traction all the time it will last.

[HWYSTR455]

46 heads with screw in studs are of 2 varieties, one is 98 cc, the other 89 cc. And usually, they are bigger than advertised by a few CCs. Your deck height is .010, with a 17cc dish, 4.190 bore, 4.250 stroke, you are in the 9.3 - 9.8 range. Which makes more sense.

The info on the head flow sheet is bogus, the guy just plugged something in to do initial calculations, it's the flow data that is important.

.

[AdamIsAdam]

Originally Posted by HWYSTR455

46 heads with screw in studs are of 2 varieties, one is 98 cc, the other 89 cc. And usually, they are bigger than advertised by a few CCs. Your deck height is .010, with a 17cc dish, 4.190 bore, 4.250 stroke, you are in the 9.3 - 9.8 range. Which makes more sense.

The info on the head flow sheet is bogus, the guy just plugged something in to do initial calculations, it's the flow data that is important.

.

ohhhhhhhhhhhh!!!!!!!!!!!! That makes much more sense!!! And makes me feel better that it's not such a high CR. THANKS!!!

Just curious, how come you can't calculate the exact CR? Are you missing some piece of info?

Also, these heads were converted to screw in. Not sure if that helps you any.

Is there anything else you can tell me from the paperwork that I either had wrong or didn't know? This is great stuff. It's like tracing a family tree all the way back

[HWYSTR455]

If they originally were non-screw in studs, they are in the 96-98cc advertised range, so it would be closer to 9.3 SCR. And no, there's no other info on the docs that you really need to know, all standard stuff.

.