Originally Posted By 73DAD
Did they do anything special for the exhaust relief on the pistons for the edelbrock heads' different exhaust valve angle? Or was the compression height low enough to make it a non-issue? Awesome motor, box stock head castings or ported?


The eddy heads caused major issues for Rob and how they fit up with the pistons....I know he had to have the pistons re-done multiple times due to the newness of the heads, and ultimately, I think it contributed to the lower compression than what his target was.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk