Re: 1971 Buick 455 GS F/SA G/SA Build
 

Thanks!

Re: 1971 Buick 455 GS F/SA G/SA Build
 

Just throwing this out there...I see you're testing at 600rpm per sec (which is standard) did you (or would you consider) dynoing at 300rpm/sec? The reason I ask is it has a heavy rotating assembly and a super steep gear might actually slow it down as too much torque wasted spinning up the heavy internals?

Like I said, just throwing it out there....food for thought as it were.

Re: 1971 Buick 455 GS F/SA G/SA Build
 

I did test at 300 RPM/sec, not much difference in power output. The fast F/SA Buicks 315/330 HP run a 4.30 gear and turn 6600 RPM in the lights, and run 10.80s @ 450 elevation. Its important to note the 315/330 is a whole different animal than Jason Lines C/SA combination.

Re: 1971 Buick 455 GS F/SA G/SA Build
 

In stock your not suppose to be able to do anything to the heads and intake besides a valve job right? although judging from your other post and that you seem to have a in house dyno and who knows what other equipment your probably perfectly capable of altering that to your advantage.

Re: 1971 Buick 455 GS F/SA G/SA Build
 

Jason Line 70 Buick Gran Sort 10:45 in C/SA at Indy this week!

Re: 1971 Buick 455 GS F/SA G/SA Build
 

Jason Line qualified 60/128 at -0.950 under his 11.40 Index

Re: 1971 Buick 455 GS F/SA G/SA Build
 

and your questioning his integrity why?...........

Different valve angles and seat width effect flow, and that's just as two examples of what he meant by "work on the heads". There are many more legal things to do before resorting to "port the heads and cover it up" as you're insinuating.

Uncalled for imho, there are a lot of people with a lot of equipment, doesn't mean they must be cheating because they have fancy tools.

Re: 1971 Buick 455 GS F/SA G/SA Build
 

Thanks, but I took no offense and never thought anything about it. I asked people for their opinions and really want to here them. I will say this, this forum going to see everything I do to this car-from start to finish, all the engine work including head work-to the dyno testing to the in car testing, I've never seen anything this complete on here before, should be interesting.

Re: 1971 Buick 455 GS F/SA G/SA Build
 

How would your intake valve job look like on a .398 lift? Anyone.........

Re: 1971 Buick 455 GS F/SA G/SA Build
 

Just wondering where you got the car? I ran the same combo in the past I have a good set of 71 heads TA SS valves with Poston springs off the car along with a few other parts. I am located in Texas now formally Va.