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Tom Meyer · 03-14-2021, 02:21 PM

We tried different exhaust manifolds and pipe sizes with no help, that did nothing. Now we could bolt on a 2.4 intake manifold [bigger] using everything else the same and pick up 10 HP. Do you think with two exhaust valves per cly and OE the uses a anti reversion cone in the exhaust pipe that by adding a cone in each tube would help? Also tube size would play a big part.

03-14-2021, 02:21 PM	#187
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 900 Likes: 51 Liked 301 Times in 105 Posts	Re: Not for Nuthin' But Close! We tried different exhaust manifolds and pipe sizes with no help, that did nothing. Now we could bolt on a 2.4 intake manifold [bigger] using everything else the same and pick up 10 HP. Do you think with two exhaust valves per cly and OE the uses a anti reversion cone in the exhaust pipe that by adding a cone in each tube would help? Also tube size would play a big part. __________________ Tom Meyer 5240 SS Stock ???