70cuttlassvert

Hello all I am an owner of a 1970 old cutlass supreme convertible. 350 rocket, 4bbl holley 650, headers w/ dual exhaust and edlebrock intake. I have used this site to rebuilt my suspension, fix fuel gauge, fix ac, hell you name it. I just want to thank everyone on this site. I have owned my car for 1 1/2 years now and I love it.

70cuttlassvert

I'm located in Kansas City MO if anyone is around my way.

70cuttlassvert

Just got out of paint still need to put her back together



Before paint, before new hood and def before hail storm ��

70cuttlassvert

Built a console for my car and trunk enclosure. Also removed the wood grain.


Removed woodgrain



Console I built



Trunk enclosure hiding 2 subs I built. Carpet floor with black leather panels

oldcutlass

Glad we all can be of help, welcome. Your vert is sweet.

70cuttlassvert

Thank you sir. Can you or any point me in a good direction on this forum to find good info on performance upgrades for my drive train? I have the 350 with a turbo 400 Trans.

Fun71

My suggestion would be a rear gear swap. The base no-cost rear in 1970 was 2.56:1 so something in the mid 3.xx range would really make a difference.

Back in the 80s I swapped the 2.56 in my 70 Supreme for a 3.08 rear and it felt like I added a bunch of horsepower to the engine. Then I swapped the 3.08 rear for a 3.55 rear and it felt like another huge increase in power.

70cuttlassvert

Thank you fun71. I have posi but I don't know the gears the previous owner did this. Anyway I can figure our what gears I have? Also is there a good can I can upgrade to with out loosi g vacuum? I hears that's an issue for our cars. Any suggestion with my heads?