Ford actually used the 4452-1 as a replacement carb on anything from 302-429 in 1968.
It will work fine, if it doesn't, there is a setup or rebuild problem, it shouldn't need rejetting or any modification, these are pretty easy carbs to bolt on and go
As far as better, it should make a little more power at the peaks, but on a 302 it won't be significant. Edelbrocks are pretty responsive down low, so it really depends on how you drive it and how the Edelbrock is tuned
I doubt the 4452 will have electric choke though, unless it was modified, so if that is a concern, I'd probably leave yours alone if its running good.
The benefit of the 4452 is that it will look more factory stock, and lots of Holley guys out there to help tune, but I wouldn't expect anything drastic.
If you are looking for power, consider a recurve of the distributor if you havent done it. Stock Ford distributors have too slow of an advance and a secondary issue of too much once it comes in. A performance recurve really helps drivability
70 Sportsroof, 427 FE, 489 cid, 10.7:1, Erson valvetrain, KC ported Edelbrock heads, modified Massflo EFI, TKO-600, 31 spline 4.10, A/C.
71 F100 4x4 shortbed 445 FE, ported iron heads, ported RPM intake, Bullet custom solids, 1000 Holley
13 Ram 2500 Laramie Quad Cab 6.7 diesel
Last edited by My427stang; 11-17-2012 at 10:06 AM.