[70RAlll]

Originally Posted by RicksGTO

thanks for posting the figures from the recent races Dennis! Very interesting, especially Weymouth's times between his RAIV and 455HO as his engines would be blueprinted and tuned to the same level and suspensions set up in similar ways. The 12.25 to 1 compression allowed on the earlier 400's is a definite benefit to their times. I'd love to see what the HO's and SD's in this class would run with just that one additional change in compression.

I agree..12.25:1 compression seems to be pushing it. Definitely race fuel vs the HO @ 9.9:1 compression could still run on readily available fuel... to me,and disclosure..just my opinion, not trying to start a fight here, I think that is a bit of a stretch. I get the 1.5 increase in compression on all engines from advertised , but when you take an engine from running on pump gas to racing fuel, well I just think you have lost the spirit of STOCK racing.. would love to see numbers of cars with original stock compression engines. Bet the difference ,especially with the RAlll would be glaring... I have always wondered how stock racing produces such numbers vs what these cars did in period tests..And RAlll getting 12.25:1 vs RAIV getting 12:1?? again, seems like the RAlll got a little benefit that makes its performance look better than it ever did against the RAIV,HO or SD's....