hello guys i need to pass the visual...............but. i was just wondering...could i just run the pump directly to the tes and cat...pumping a.i.r in all the time....do you think i would get backfires(wich i like)..........just wondering...................also my smog pump is siezed....any tips on getting that thing free...........................................................thanx

rob..

83 Camaro
'78 305 deep dish pistons
Non-CC 78 Q-jet H hangar DR rods
HEI vacuum advance dist.
Edelbrock open element
Non-EGR Performer manifold
416 heads 1.84"/1.5" valves, 58cc chambers
Edelbrock TES 3"
Catco 3" universal
TH350 with B&M shiftkit and adjustable vacuum modulator
3.73 rear end (one wheel peel)
Rear srping rubbers
Mach sixty road slicks
LED display tach.

About what ???? 190-210 horse????

 

I have, indeed, run the smog pump to the cat converter full time with NO backfiring or bad side effects. I had nothing but a pipe and check valve between the smog pump and the cat.

Now, if you run the smog pump to the A.I.R. pipes that feed air to the exhaust ports, THEN you will hear a lot of burbling when you let off the gas, but I never heard any backfiring. But, full time air to the exhaust ports will kill performance. What you could do there is to remove the A.I.R manifold, get a 1/4" drill bit and use it to pull out the tube extensions. Then put the manifold back on. Those tube extensions stick way into the exhaust port and are quite thick. That will help the heads to flow better and still maintain outward appearances.

 

cool... i think i will mess around with it....i dont have the computer............but.........i really dont mind having the tube connected to the cat//thanx

rob