Glad to see SCCA look at the 16V.
The USA 16V came with AC and power steering AFAIK. It is possible that Canada had a 16V Rocco without AC and PS. I have never seen one.

The stock 16V has less open valve time than the RD 8V and just a little more compression.
All done with both very legal the 8V wil run right with the 16V @ about 50# more . The 16 carries about 40# more nose weight, spins a lot of valve parts along with the PS pump.
2325# would not make it a front runner IMHO. The squirted Mk 3 with early cam specs and double springs will still out run it up to around 2450#.
If the 8V wheels @108-110 with CIS, 111-113 squirted
the 16V spins around 113-115 (CIS, with PS and alt working)
The ABA 2.0 is well into low 118-120 or maybe a little more.

The 8V should be 2250#, the 16 @ 2325,
the ABA @ 2450 or maybe 2400.
Based on actual rollers. These are values used for the few VW Cup races. Some issues that we had; all of the 16V had too much compression, the wrong intake cam. The 8V had much of the same. We speced the Brazilian 268 cam for the 8V and allowed the two intake cams for the 16 V and it worked out fine with 50# spread .
I built 2 SCCA ITA 16V for customers and we promptly swapped to the 8V. same lap times.

I will roll these all in the next month or so, back to back on the same tires etc. I dont run any SCCa ABA legal engines tho.