[thirdgen455]

ok, i'm thinking about changing the cam in my 455
right now it has a SPC3 mellings cam
224 intake 236 exhaust
.434 intake .434 exhaust with the 1.6 rockers
112* intake 119* exhaust

my engine is 11.6:1 compression 469 with ported 62 heads small tube headers, ported performer rpm intake, 750 holley with proform center.
it has gone a best 1/4 mile pass of 11.78 @ 115.8 and a best 1/8th mile pass of 7.49 @ 91mph

i'm wanting to know if anyone has an idea of how it might pick up with the new cam

ultradyne 239 intake 247 exhaust dur
.541 intake .565 exhaust lift
104* intake 116* exhaust

i'm hoping with the bigger cam I will lose some of the bottom end and pick up on the top, right now I just blast the tires off.

ok yeah TH350 3800 ATI converter and now 3.73's 28X10.5's. the passes mentioned where on 26X10's and 3.23's and I have not made any passes yet on the 3.73's