I seem to recall reading on here a year or so ago that someone had taken a stock late 80's early 90's Corvette or Camaro Cross Ram injection intake and they had remove the top of the intake and made a new Top that would allowed for either 4 or 6 deuce carbs to be installed.... Just was wondering if anyone else had done it, how did it seem to do performance wise, and if you had any pics of what you had done
I hadn't seen that older thread, but lots of opinions, most wrong. I did this years ago an my '68 camaro with a 327 4spd. That intake was made for tons of low and midrange torque. If you look at the runners themselves thare about 3/4 the height of the stock intake profile on your head, but with the same width. This increases you velocity which is good. The 'cliff' it creats between the intake and inside of teh head port is also good for anti-reversion. Some will claim that the increased velocity in the intake runner is useless when it dumps into a larger head runner causing it to lose velocuty and possibly letting your fuel fall out of suspension. I have never had issues with it. I made mine with a 1/2inch flat plate and a single 650dp on top and a one inch spacer. You will likely need a specer under any carb just so your linkages wont hit your plate. Be sure to radius to underside of your carb entrance on the plate, there's not much room for the air/fuel to turn before hitting the runners. That intake is originally designed with a EGR and has that large aluminum rectangle tube running transversly across the intake runners. Cut it off and weld up the hole over on the backside of the intake , smooth the top of the runners to match the others. It will cause fuel distribtion issues as it acts like a damn. I had zero issues with the "large" plenum everyone is always concerned with cross rams. I ran a stock Holley DP with a decent accelerator cam, but no 50cc stuff. I had 3.08s in the rear so no good low gear and that 327 made so much more drivable power than the stock Z-28('69 version) intake it really was unbelievable. I say do it, you can still get the top gasket at most local auto parts stores, if not they can order...with some moce stainless cap head bolts and some smoothing of the top plate edges 99% will think it's a factory camaro intake with the Winters foundry mark cast into the front....I say do it, it's free, works extremely well and you can be proud of fabricating something on your car. Hans
Not what you asked about, but I have seen a tuned port manifold that had the runners go up to a plenum that had 3 2 bbls. mounted to it.
Odd, I have one of those manifolds mounted on it's original OT vehicle and I never thought of it as the basis for a performance piece.
Well my theory is i wanna run 4 or 6, 2 barrels but dont wanna pay the price of a man-a-free intake... im a fairly descent machinest so i figured i could make something outta this that will allow me to run the carbs i want, look cool as hell and hopefully get half *** descent preformance outta it
The Jalopy Journal
