[AllSpeedAndy]

Here are some pics of a 69 with a small block in standard location, with an
F1R, there was about an 1/8" of space to the inner fender from the blower. But it did fit with no trimming, and solid mouts were used on this one.

On another 69 with a SBC, a vick jr. and 800 hp holley. they would only fit under they stock cowl hood with the low proffile bonnet from
Pro Charger, the biggest draw back to the low hat is the boost drop of about 3 psi. it is super restrictive. And we had to cut a portion of the under support to clear the charge tube from the blower to carb.
the set pictured below fit under a 4" hood with no probs.