How fast have you gone with exhaust manifolds?

My car (the '72 Valiant in the picture to the left) was built in 2002 with a 360 Magnum, and everything except the carburetion and cam was OEM. except I had opted for early 340 exhaust manifolds hooked to a TTI H--Pipe system.

Carburetion was a box-stock 3310 (750) vacuum-secondary Holley on an M-P dual plane manifold, which was WATER HEATED!!! (WHAT were they thinking???) Jeesh...

The cam was (and, is) a Hughesperformance hydraulic roller, and very mild: 214/218 duration at .050"-lift, with .525" total lift, ground with 214-degrees od lobe separation. WAY mild; idles fairly smoothly at 475 rpm, making 12 inches of vacuum for the brake booster.

The transmission is a stock 904, with a 2.45 low, and a 318 torque converter with 2,500-rpm stall speed. It also has a Trans-Go shift kit

With an open 3.91 third member and some 26"-tall, 8"-wide T/A Drag Radials (BF Goodrich), it ran a best of 13.35 @ 102 on a 95-degree day at Sacramento Dragway (sea level.) Best 60-foot was 1.91. Most were 1.93- 1.94.

That was, as I said, with early 340 (swept-back passenger side) manifolds, through the mufflers, which were the TTI mandated DYNO MAX Super Turbos.

I later decided that that really wasn't as fast as I wanted to go, so I decided to add a Vortech blower. That made me think about my exhaust system, so I sold the cast iron manifolds on ebay and replaced them with some TTI step headers.

I installed an Air Gap-style *Crosswind" intake manifold and a Carb Shop-prepared 750 double-pumper Holley carb that is supposed to be set up for "blow-thru." I really wanted an Edelbrock manifold, but none were availble, yet... casting problems delayed the release of that particular manifold for months, so I ordered this Chinese knockoff; I needed a manifold.

I DO try to "buy American" when I can!

Then, I got sick and spent three months in the hospital and couldn't finish the car, but I'm well now, and am about done with the changeover to forced induction. Had to make everything myself, 'cause Vortec doesn't make a kit for an L-A/Magnim motor. That was fun..... and, time-consuming.

I am hoping to pick up about a second and 10 mph, but we all know that "talk is cheap"!!! LOL!

We'll see... :)

Bill
PS is there any way to upload pictures to this forum from my hard drive? I don't have any online, so can't do the "http" thing... . Any onfo will be appreciated.