

tpi tune port swap 350 vortec ... fuel injection intakes so I found that they offer a tune port injection intake for the vortec heads so I found a used tpi upper and runners off capitalist already polished for 80 bucks and then I forked out 500 for the lower intake from edelbrock then I got a set of bosch 22lb injectors and ordered new plugs ...























Sounds like a good deal to me. A 350 has 5.7L cast into the rear of the block behind the pass. side head, 305 will have 5.0L. 8th digit on the vin should be 8 for 350, H for 305. The ECU controls the fans too, so try to get them. There ain't a whole lot of difference between a TPI small block and any other small block.



In other words, the 86-89 350 TPI engines used the 1227165 ECM, and so did the 86-89 305 TPI engines. The 90-92 350 TPI F-Body engines (Camaro and Firebird) used the 1227730 ECM, and so did the 90-92 305 TPI engines. The 1985 305 TPI engines used 1226870 ECM, which is the same as the 1985 350 TPI ECM (350 was only available on the Corvette in ...



If you are playing with the idea of putting a tpi on your 383, then you can forget about horsepower. Torque will be great, however. GM tpi was designed for the 305, the 305 tpi in my 85 camaro is somewhat quick. The 350 l-98's that came out in 87 were absolutely choked on the top end, ie no hp after 4000 rpm.





Chevy TPI 350 5.7L MASTER Engine Kit Pistons+Gaskets+Cam+Springs+Valves+Bearings. Opens in a new window or tab. Brand New. $883.08. Buy It Now. Free 2-3 day shipping. Last one. 16 watchers. Sponsored. falconglobal (103,855) 99.4%. For 85-88 Camaro/Firebird TPI 305/350 Cold Start 9th Injector Kit Billet NEW. Opens in a new window or tab.



In theory, a 245hp/330 ftlb tpi 350 with 7.5 psi of boost should make 50% more power (368hp/495ftlbs). 8 psi should make 378hp/510 ftlbs 10 psi should make 412hp/554 ftlbs 12 psi should make 445hp/597 ftlbs 15 psi should make 490hp/660 ftlbs yes, the tpi intake is restrictive, but boost will change that. However, better to use a regular intake ...















You may also want to take of the TPI manifold, and use a dremel or mineral paper, and smooth out the surfaces inside. This will improve horse power a bit. Other than that you might want to get a bigger throttle body. BBK makes one that fits almost perfect on the TPI manifold. 1534 - Twin 52mm 1985-88 305/350 TPI 1536 - Twin 58mm 1985-88 305/350 TPI



The STOCK 350 TPI will outperform a STOCK 350 TBI. '87 IROC-Z 355 HSR C950 Lunati Voodoo Solid 241/[email protected] .555/.576 lift(1.6) 110LSA, Pro Topline Iron …





The 193 is the truck Swirl Port it isn't anything close to a performance head, the ports max out around 4300 rpm. Before you leap too far you need to know the angle the bolts alongside the plenum make to the head, the TPI if using the casting 14096217 iron head came with the older 90 degrees to the intake face surface of the head or the later 72 degree which is …






