Here are some comparisons for those who are interested:


-----------Peak HP-------Peak TQ-----Avg. HP---Avg. TQ
-----SD--556 @ 5700---561 @ 4500-----502-------522

-TR 600--550 @ 5500---571 @ 4600-----505-------527

-TR 750--551 @ 5500---570 @ 4400-----505-------527

STR 600--527 @ 6200---550 @ 4500-----484-------505


Very interesting. I wonder why the STR makes it's peak HP so much higher that the other 3? Is it due to the larger plenum volume or...???

Well, the STR may be down 18-21 HP and 17-22 lb.ft. of TQ compared to the others, but it has a more unique look than the SD/4500 and it will fit under the hood (and a Max Wedge hood scoop) on my 64 unlike the tunnel-ram. Hey, I have to justify it to myself somehow...

A big thanks to Fast for the numbers. For those of us using "old tech" pieces like the STR, its nice to know how it compares to more modern set-ups. Fast, if/when you ever test the OE STR and the MW X-ram, I would be very interested in the results.

I was very surprised to see how little the numbers on the TR changed with the different carbs. I knew that there would not be a big difference, but I thought it would be a little more apparent. I wonder what kind of difference there would be between the Weiand and an M-1 TR. I just happen to know where one is sitting on a shelf if you would like to compare...