[HWYSTR455]

I say always build a 'system' to support just about anything you plan or even aren't planning to throw at it. That way no matter how many times you change your config you always have enough, never have to worry.

Since carbs are at lower psi, a bypass regulator as close to the carb is common/best practice.

EFI due to psi has much less of a chance of vapor lock.

If you plan on running a high psi pump with a carb, the return line needs to be enough to handle the fuel being bypassed to maintain the lower/desired psi. Sometimes, that means even running a larger line than the feed. EDIT: Always run the same return size as the feed.

I also believe in running as much hard line as possible, for many reasons, but cost is a biggie. The more hard line you run, the less 'soft' lines and fittings you need.

When it comes to AN fittings and line, I've tried just about all of them, but will say, you get what you pay for. These days, I only use Russell and Earl's. There's some specialty fittings that may not be made by those 2, but it is what it is, and can work around that fairly easily.

As for AN hose, they vary in thickness, and it is strongly advised to use fittings from the same manufacturer as the hose.

For 'soft' hose, the PVC pipe cutters work pretty darn good. I've tried some of the AN fitting company's cutters, but always seem to go back to the PVC ones. Obviously, that won't work for stainless covered hose, but not many use that anymore anyway.



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