A55NV, everything these guys said is true. I wish I knew what I know now about blowers, ya I know not much , back in the 60s. I've run mine for about 6 years now. I had an accident and wanted to check the blower to make sure nothing was tweeked. I brought it to Littlefield and tolarances were still good. Run good filters and you should be ok. I have a 383 with a 671 and Holleys running 10% underdriven. Pump gas (91) works fine as long as you drive within reason. I used Holley 750s and had a hard time getting them jetted down. I think that 600s would have been better and are plenty of carb. Carbs had to be reworked for blower but it wasn't hard to do. I think you should DO IT. Their fun to drive.