51 IDA on 12a, not PP...

sen2two · 10-18-2010, 11:24 AM

I just bought a 85 gs with a 12a and it already has a RB manifold and Holley. Not sure if its a RB 465 or a 600cfm holley. The guy I got the car from bought it as is and didnt know, and from what i'm told... i can bet it's a 600.

So, I have these 51 IDA webers with a IDA 12a manifold... I know a holley 600 is far to large for a stock or street ported 12a. But I have had them run fine with the over sized holley before. So is that to say, I can use my 51 IDA, even know they are to large, and get them to run good until i get get a nice 45 or 48 IDA?

Or is a 51 just so over sized it will never even come close to running right?

10-18-2010, 11:24 AM	#1
sen2two KTEC Join Date: Jan 2009 Posts: 642 Rep Power: 0	51 IDA on 12a, not PP... I just bought a 85 gs with a 12a and it already has a RB manifold and Holley. Not sure if its a RB 465 or a 600cfm holley. The guy I got the car from bought it as is and didnt know, and from what i'm told... i can bet it's a 600. So, I have these 51 IDA webers with a IDA 12a manifold... I know a holley 600 is far to large for a stock or street ported 12a. But I have had them run fine with the over sized holley before. So is that to say, I can use my 51 IDA, even know they are to large, and get them to run good until i get get a nice 45 or 48 IDA? Or is a 51 just so over sized it will never even come close to running right? __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2