So I am going to finally get around to playing with something I have been wanting to do for a while. I have had my van TPI forever and a day and ready to make the van more strip oriented. I don't drive it much on the street and no longer have to pass a dyno emissions test. I have a nice little 6" rod 383 in the van with my heavily ported 906 vortecs on it. It has a custom grind Reed cam in it, but I still have a GM 846 and 847 laying around. I will be opening up the exhaust and ditching my flowmaster 40s for magnaflow straight through mufflers. I will put the dual cut-outs before the muffler. The edelbrock TPI base will be coming off along with the SLP runners. In their place I am going to put the Edelbrock Victor Jr 4bbl Vortec intake. For the TBI I have a marine TBI from a 375 HP 502 BBC and matching squarebore adapter. For a carb I have a Holley 600 cfm with a TPS I attached in place of the choke. I will be doing some track runs using both the BBC TBI and the Holley 4-bbl carb. For fairness I will be tweaking both of them and use the same ignition and transmission settings for both. Should be interesting when I get around to doing it all. The transmission is a 2,600 stalled stock rebuild 4L60E with a Transgo HDII shift kit, controlled by the 427 TBI PCM. My 1-2 shift will likely be in the 6,500 rpm range and 2-3 in the 6,250 range. With the 3.08 gears I will trap the 1/8 mile at roughly 75-80 mph and a mere 5,500 rpm in 2nd. I have some interesting approaches to try and you guys may like them. I will keep you'll posted. I still have this gut feeling the Marine TBI is going to hand the carb its venturis. I will also be stripping the van from 5,500 lbs down to a mere 4,500 lbs by removing the whole conversion interior, the rear a/c unit that has not been hooked up the past two years carpeting, etc. It will basically be a metal box with conversion van windows and running boards. Eventually I will stuff the rear-end with 4.56s and some form of locker. Should be fun beating these so called racecars I want an 7.99 pass out of this beast on motor and be able to drive it home with the a/c blasting.

 

I am interested in what you can do with the TBI. I have always dug your posts here and on the fullsize chevy sites.

 

Awesome. I'd like to see this done and see the info. Keep the TBI alive! post up the info as soon as you can Fast

 

Took a couple of quick pictures today.

 

I see mopar papers....

 

4.7 parts for my brothers 03 Dakota.

Thats a mopar compressor for my 4.7 Ram too, except its got a 5.7 now.

http://www.youtube.com/watch?v=pySofWYQeG0

 

TBI will be MAF like it was before the TPI?

 

Actually planning to run just the 7427 in Speed Density mode. Going to see how well I can get the lumpy cam tamed with it.