looking for your suggestions for a new intake

[69 Mach I]

Originally posted by Dennis Kelley


You may not need a intake it you find out what the Air fuel ratio is at. I picked up 51 hp on timing alone. Was the dyno done with a wide band o2 sensor. Just use the dyno to tune don't get hung up on the numbers. An air gap is an excellant mainifold though. An automatic tranny eats some more hp than a manual. I'd shot for an air fuel ratio of 13 to 1. the dyno is great for tuning

later Dennis

The only number that counts for me is the time after 1320 feet. I don't care if my rwhp on a dynojet says 500 hp but I do the 1/4 in 14 flat. BFD!!! But what I do know is that I cannot throw my hands up and say that where I am is as good as it is going to get. Otherwise, my 1/4 times will be disappointing. I have seen inferior builds make 25 rwhp more than mine. As for my torque numbers, I will take them! I just know that I should be getting more hp at the rear wheels.

What I do know is that I have plugs that are a touch too hot for 11:1 cr. I have autolites 3924s good up to 10.5:1) and I need autolite 3923s, one heat range colder for my CR. Also, the plugs have not yet been gapped. I understand that can make a difference.