Quote:
Originally Posted by prostreet64
My son's car with the 400 has had the RPM for many years. We went through a series of flat tappet hydraulic cams with the last being the XE284. Always used a 1" spacer and 4" air box. Had to go to a cowl hood to get the needed clearance. Heads, #64, ported to 250 on the intake side and c.r. at 9.7 to 1. This combo yielded a best of 11.69 at 115 on 93 octane. As Cliff pointed out your combo may not benefit from the RPM but it is an excellent intake for the 400.
|
Nice, the car pick up with the spacer?
__________________
1963 Cat SD Clone (old school) streeter
1964 GTO post coupe, tripower, 4speed (build)
1965 GTO 389 tripower, 4 speed, driver
1966 GTO dragcar
1966 GTO Ragtop
1969 Tempest ET clone street/strip
1969 GTO Judge RA lll, auto
1969 GTO limelight Conv. 4speed go and show (sold)
1970 GP SSJ
1970 GTO barn find..TLB…390 horse?….yeh, 390
1972 GTO 455 HO, 4 speed, (build)
1973 Grand Safari wagon, 700hp stoplight sleeper
525ci DCI & 609ci LM V head builds
|