deck height problem (351 into 67 Mustang)

That's funny, my 390 and 427 fit fine with a high rise dual plane intake and Holley carb in my 67.

Rusty67 said:

Can't close the hood eh ? Have you tried a drop top air filter yet ?

Click to expand...

Very good point. I suggest going to Advance Auto and getting the Holley dropped base air cleaner. You will gain way over an 1 1/4" clearance over a normal, non-dropped unit.

How much clearance do you need???

An air gap is tall, so you you have your work ahead of you if you do not put a hood scoop on. I don't know how much different height-wise an air gap is over a Vic Jr, but with a few mods I installed the that intake under my 65'. I angle milled my intake's carb pad .300" to get a better hood angle.

Other things to try:

Invest in some lowering motor mounts.

If this doesn't get you all the clearance you need, I modded my drop base even further. I simply cut the base's carb mounting lip down and gained about 3/8-7/16" more clearance. I also needed to make little closed off tunnels for the Holley external float adjusters to fit in. This mod on the drop base Holley air cleaner gets you nearly 1 7/8":

The Weiand Stealth intake is good and it's shorter than the Air Gap.

the stock 67 289 motor mounts place the motor a little higher up than the 68-70 motor mounts so swapping to the later mounts might solve your problem. at any rate it certainly won't hurt to have the engine sitting a little lower even if it's not enough for the intake to totally clear the hood.

i'm sure with a combination of the later mounts and some air cleaner mods you'll be fine. if you are using a stock air cleaner check out the mod

http://429mustangcougarinfo.50megs.com/new_page_7.htm

and this one

http://429mustangcougarinfo.50megs.com/stealth_aluminum_intake.htm