I was able to get the new fuel pump and new Holley Hydramat installed this
weekend and go out for a quick ride to assess the results. The very first thing
I noticed is how QUIET this new fuel pump is. Its not like the Walbro 255LPH
unit I removed was noisy by any means, but the new pump is barely audible.
I like to think that speaks to its build quality.
To make the install in the stock tank a bit easier, I ended up taking my old
TanksInc 5-hole fuel level sender, and retrofit it into my stock tank in the flat
area just forward of the stock sender opening. By doing this, I removed the
burden of having to fit both a sender as well as the pump into the stock
opening. This made the rest of the install a breeze.
I did a few full throttle pulls (no laptop, just the wideband in the dash), and the
AFRs are in the low 11's to high 10's near redline, so I have a bit of cleanup to do
in the VE tables. The good news is that the fuel system had no trouble
keeping up, so I'm going to call this update a success.
-Scott
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70 Bonneville convertible, Vortech V7 YSi supercharged EFI455 + 4L80E
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