**73 Scamp Mini Pro-Street Engine Swap**

Was messing with the NOS Fuel pump trying to get the FP to be rock steady. I was noticing that when the pump got warm the FP would creep up to 12 PSI from 6.5 , I did a search and found out that a lot of people with the Holly configured fuel pumps have this issue when using the 12-803 style regulator. So I ended up stretching the spring in the Fuel Pump about 1/2" longer and polished the plunger. I put it back together and this seemed to fix the problem a bit and when the pump got warm it would creep up to about 9 PSI after this mod. When I had the pressure spring and plunger out I popped the bottom plate off and inspected the veins. They seemed a little tight but I just put it back together. What I am going to do in the next few days is Polish the Veins so they move in and out with ease. What I am thinking is when the pump gets hot the vein tolerance is tightening up messing with how much fuel the pump is flowing and in this case the FP is increasing. Anyway trial and error will tell me. I don't know why this bothers me because this pump will not be on longer than 1 minute at any given time. It is only for the NOS. In that time the pump stays cool and the FP is steady. It only fluctuates 1/4 LB when smacking the button. This is very minimal.

I adjusted the valves today they were pretty close but I am a weirdo when it comes to valve lash so I tuned on them for a while. I make sure it is correct and the adjusters are very tight so they don't move. I want piece of mind when I am up in the RPM's.

Also TIG welded on the 2 Breather extensions. This was my first project doing Aluminum. I think they came out well for old oily valve covers. I cleaned them the best I could before I started and I pre heated them with a Propane torch to a good temperature before I started welding on them. I just could not find a way for the old set up not to weep a bit. The sealing system was junk. New Rubberized metal core Valve Cover gaskets will be installed also. My goal is to get the engine to breath a bit better. Brian at IMM has a set of valve covers that have 4 Breathers like this and they seem to work well. If need be I will pop the other 2 in later.The tubes are 3" long so I can adjust them up and down a bit.