Can someone post a picture or sketch of where the holes are?
Are they in the locating flange?

Thanks

just a web pick,but ya get the idear

http://www.gessford.com/cobraparts/Thermostat-08254.JPG

I ran into this issue last summer. I had the thermostat go on my 540's. Victor Jr. Intakes and crossover. I replaced the thermostat. Then my motors were running hot over 3500 rpm. Couldn't figure it out. Pulled the thermostat from the other side. Worked fine, looked closely. 3 holes drilled. 3/16" big on thermostat. Slapped it in and boom. Perfect readings. Never new they drilled thermostats for more water flow, but it works. Hard to believe 3 tiny holes does the trick but. 2 seasons, no problems.

We did the drill thingy to keep flow going and to keep from air pockets out.

My race car uses a Moroso Water-Outlet-Restrictor ,works pretty good,
http://www.wisespeedshop.com/Moroso-...or-p-7454.html


Also my Whipple kit for my 500efi cam with a water outlet restrictor.

Id still run a thermastat

3 - 11/64th holes did the trick.
contant water temp

Thanks