I have a potential engine combo that could use a lot of cam duration, and a possible combo comes to mind. Big block 604 cubic inch, indy 440-1 heads ported, jesel 1.7 rockers, PAC beehive springs with 150 lbs seat pressure, Comp 290 @ .050 .650 lift flat tappet cam. Rpm would be limited to 6400? The idea being i have a lot of used parts that could be used to build this, but budget is a big consideration. My question is, by limiting rpm, will that allow the use of 1.7 rockers on the flat tappet cam and still live a decent life as a pumpgas bracket motor?
The spring i am looking at is a PAC, BEEHIVE, 2.00 INSTALLED, 150 seat, 385 open, 313 lbs per inch rate.
The net lift would be . 710, allowing a higher installed hieght to lower pressure to 140 seat if need be.