[JSuchma]

I'm pretty sure the 1970 455 HO 4SPD with ram air had a 7040279 quadrajet. Only the RAIII and RAIV 400 4SPD got the 7040273. The cars that received the 7040273 and 7040270 quadrajets also had the ram air exhaust manifolds. As far as I know, the 1970 455 HO In the GTO had standard log exhaust manifolds.

[65 Lamnas]

Originally Posted by JSuchma

I'm pretty sure the 1970 455 HO 4SPD with ram air had a 7040279 quadrajet. Only the RAIII and RAIV 400 4SPD got the 7040273. The cars that received the 7040273 and 7040270 quadrajets also had the ram air exhaust manifolds. As far as I know, the 1970 455 HO In the GTO had standard log exhaust manifolds.

You're correct except for the '70-455HO 4-spd GP and A-body...it would actually be 7040267 for a 49 state car, (0567 for CA). There was no 0279.

[JSuchma]

Originally Posted by 65 Lamnas

You're correct except for the '70-455HO 4-spd GP and A-body...it would actually be 7040267 for a 49 state car, (0567 for CA). There was no 0279.

I stand corrected! As age goes, so does the memory.

[4GTOSplus]

Originally Posted by JSuchma

I'm pretty sure the 1970 455 HO 4SPD with ram air had a 7040279 quadrajet. Only the RAIII and RAIV 400 4SPD got the 7040273. The cars that received the 7040273 and 7040270 quadrajets also had the ram air exhaust manifolds. As far as I know, the 1970 455 HO In the GTO had standard log exhaust manifolds.

So if there was no 7040279, What carb came on the 1970 455 WA RA 4 speed? The non RA 7040267 or the RA 7040273?? These are the only 2 RA possibilities according to the books I have.