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Which edelbrock intake and what stock manifold are you swapping out? Performer 318/360 is a junk manifold. A stock Iron 340 intake is better, especially if you put a 1" spacer on it
A 2.02 valve headed 340 with a xe268H will make about 350hp with everything right. 340's will really have something along the lines of 9.5-9.7:1 even using higher compression 68-71 pistons.
I'd like to see that Dyno Derby 395hp, 340, run on the dyno at Indio Motor. No chance it makes 395.
Just as a side note. I've seen at least 6 engines, 340-360, all built with the same basic package, 9.5-10.5:1, stock heads good valve job, xe268H, air gap/LD340, 670-950 carbs, headers and none of them made more than 360hp, most made between 335-350hp. The ones that ran at the track all MPH'd like a 330-350hp engine per weight.
The XE268H is a good all around camshaft.
It has a edelbrock carb and stock 340 intake. want to get a 340 avs carb instead a 1" open spacer? well we went with the 4452992 cam and a 11" 2400 stall.is that enough stall with 3.55's? this is not a race car just a nice cruiser . so it won't even be at 10.1 then? so set that cam at 106 then instead of 108? were thinking 108 cause of comp but if it isn't that high then we will set it at 106 for more bottom end.
Last edited by menomoniemopars; 09/21/10 11:00 PM.
