Help on 340 combo

ok the rear springs are stock installed in 1967 stock rear shocks, front shocks are comp 3ways set at 90-10. on the intake its a new 340 viter i whould be willing to make a deal for a air gap for the new victor... also hear is the proper cam and spring specs had to go out to the shope and git out the build sheet. the cam is a hughts htl 5256as with my 1.6 roller rockers the lift is .610 in .614 exh. dur at .050 is 252 in 256 exh... 106 center the spring are comp cams dubbles #994 121 pounds seated 360 at .600 lift. the car pulled the wheels 5 in. with my old airgap intake and the 3.91 gears, hate that i sold the airgap intake...

well...120 lbs on the seat might be a not enough spring pressure...hughes recommends their 1111 spring which is 140+ lbs on the seat...but you are using magnum heads which has a shorter installed height.

is the cam degree..should be 3 degree advanced at 103

you should get your rear suspension fixed so that the car can launch.....and 60'...

I am using the older version of that cam....with edelbrock heads, mopar M1, 10.5 to 1 360, 950 holley...look at 71 Demon in signature below.